/* $NetBSD: param.h,v 1.3 2022/10/14 07:13:58 skrll Exp $ */

/*-
* Copyright (c) 2014 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Matt Thomas of 3am Software Foundry.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/

#ifndef _OR1K_PARAM_H_
#define _OR1K_PARAM_H_

/*
* Machine dependent constants for all OpenRISC processors
*/

/*
* For KERNEL code:
*      MACHINE must be defined by the individual port.  This is so that
*      uname returns the correct thing, etc.
*
* For non-KERNEL code:
*      If ELF, MACHINE and MACHINE_ARCH are forced to "or1k/or1k".
*/

#define _MACHINE_ARCH   or1k
#define MACHINE_ARCH    "or1k"
#define _MACHINE        or1k
#define MACHINE         "or1k"

#define MID_MACHINE     MID_OR1K

/* OR1K-specific macro to align a stack pointer (downwards). */
#define STACK_ALIGNBYTES        (__BIGGEST_ALIGNMENT__ - 1)
#define ALIGNBYTES32    __BIGGEST_ALIGNMENT__

#define NKMEMPAGES_MAX_DEFAULT  ((2048UL * 1024 * 1024) >> PAGE_SHIFT)
#define NKMEMPAGES_MIN_DEFAULT  ((128UL * 1024 * 1024) >> PAGE_SHIFT)

#define PGSHIFT         13
#define NBPG            (1 << PGSHIFT)
#define PGOFSET         (NBPG - 1)

/*
* Constants related to network buffer management.
* MCLBYTES must be no larger than NBPG (the software page size), and
* NBPG % MCLBYTES must be zero.
*/
#define MSIZE           512             /* size of an mbuf */

#ifndef MCLSHIFT
#define MCLSHIFT        11              /* convert bytes to m_buf clusters */
                                       /* 2K cluster can hold Ether frame */
#endif  /* MCLSHIFT */

#define MCLBYTES        (1 << MCLSHIFT) /* size of a m_buf cluster */

#ifdef _KERNEL
void delay(unsigned long);
#define DELAY(x)        delay(x)
#endif

#endif /* _OR1K_PARAM_H_ */